Net worth tax area cannot be a derived area

What causes this issue?

For the net worth tax depreciation area, you defined an area that is
already defined as a derived depreciation area.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Select another area or define the area as non-derived.

Error message extract from SAP system. Copyright SAP SE.